Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752361AbdLAMVU (ORCPT ); Fri, 1 Dec 2017 07:21:20 -0500 Received: from proxmox-new.maurer-it.com ([212.186.127.180]:37280 "EHLO proxmox-new.maurer-it.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752106AbdLAMVT (ORCPT ); Fri, 1 Dec 2017 07:21:19 -0500 Date: Fri, 1 Dec 2017 13:21:10 +0100 From: Fabian =?iso-8859-1?Q?Gr=FCnbichler?= To: Radim =?utf-8?B?S3LEjW3DocWZ?= Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, Paolo Bonzini , Andrea Arcangeli , =?iso-8859-1?B?Suly9G1l?= Glisse Subject: Re: [PATCH 1/2] KVM: x86: fix APIC page invalidation Message-ID: <20171201122110.nxn7ulustwn2suqh@nora.maurer-it.com> Mail-Followup-To: Radim =?utf-8?B?S3LEjW3DocWZ?= , linux-kernel@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, Paolo Bonzini , Andrea Arcangeli , =?iso-8859-1?B?Suly9G1l?= Glisse References: <20171130161933.GB1606@flask> <20171130180546.4331-1-rkrcmar@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20171130180546.4331-1-rkrcmar@redhat.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 834 Lines: 19 On Thu, Nov 30, 2017 at 07:05:45PM +0100, Radim Krčmář wrote: > Implementation of the unpinned APIC page didn't update the VMCS address > cache when invalidation was done through range mmu notifiers. > This became a problem when the page notifier was removed. > > Re-introduce the arch-specific helper and call it from ...range_start. > > Fixes: 38b9917350cb ("kvm: vmx: Implement set_apic_access_page_addr") > Fixes: 369ea8242c0f ("mm/rmap: update to new mmu_notifier semantic v2") > Signed-off-by: Radim Krčmář Thanks for the fast reaction! Some initial test rounds with just Patch 1 applied on top of 4.13.8 show no blue screens, will do more tests also with 4.14.3 on Monday and report back. 4.15-rc1 crashes for unrelated reasons, but I can re-run the tests once a stable-enough rc has been cut..